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上传文件后,以PHP表格格式打印CSV文件的前3列

2019-11-01 04:32:54 作者：互联网

我是PHP的新手,但我一直困扰于此问题.

$mimes = array('application/vnd.ms-excel','text/plain','text/csv','text/tsv');
if (((in_array($_FILES['uploadedfile']['type'],$mimes)))
    && ($_FILES["uploadedfile"]["size"] > 0))
{
    $filename = $_SESSION['username'].$_FILES["uploadedfile"]["name"];
    move_uploaded_file($_FILES["uploadedfile"]["tmp_name"],"./uploads/".$filename);

    echo "Stored in: " . "./uploads/" .$filename;
    echo "<br />\n";
    echo 'Daylight hours will be calculated for this latitude : '.$_POST['latCSV'];
    echo "<br>";
    //print out uploaded file.csv
    echo "<table BORDER=1>\n\n";
    echo "  <tr><th>AvgCrown</th><th>MinCrown</th><th>MaxCrown</th><th>dateLogged</th><th>DaylightHours</th></tr>";
    echo "<tbody id='tblBdyLoggedData'>";
    $f = fopen("./uploads/" .$filename, "r");
    $i=0;   //just a counter
    while (($line = fgetcsv($f)) !== false) {
        echo "<tr>";
        foreach ($line as $cell) {
            // Save the value before you output
            $lastColValue = htmlspecialchars($cell);
            //unset($lastColValue[3]);
            echo "<td>" . $lastColValue . "</td>";

        }
        //checking if date is valid
        checkDateString($lastColValue);

        // If you want to store all log dates in an array:
        $logDates[] = $lastColValue;                            
        $firstlogDate = $logDates[$i];
        echo "<td>" . checkDateString($lastColValue) . "</td>";
        //call function using firstlogDate for every row
        echo "<td>" . calcDaylight($firstlogDate,$_POST["latCSV"]) . "            </td>";
        echo "</tr>\n";
        $i = $i+1;
    }
    fclose($f);
    echo "</tbody></table></body></html>";
}

我只想在上传文件时仅打印CSV文件的前3列,因为另外两个将使用各自的函数进行计算. Datelogged将从csv中获取并正确地重新设置,并且白天时间也将从datelogged中计算出来.

解决方法:

愿这段代码对您有帮助

?php
echo "<html><body><table>\n\n";
$f = fopen("so-csv.csv", "r");
while (($line = fgetcsv($f)) !== false) {
        $count=0;
        echo "<tr>";
        foreach ($line as $cell ) 
        {
            if($count<3)
            {    
                echo "<td>" . htmlspecialchars($cell) . "</td>";
                $count++;
            }
        }
        echo "<tr>\n";
}
fclose($f);
echo "\n</table></body></html>";

标签：import-from-csv,file-upload,html-table,php
来源： https://codeday.me/bug/20191101/1980947.html